Your advice is needed: the llllittle pieces

Dear internet & blog friends, I need your help.

I have an almost 3 year old toddler Monkey, and a 10 month old VERY mobile baby, Roo.
I have 1 living room with 2 baskets, filled with 14,561 toys.

If the toddler takes toys from 1 basket, and plays with it for 1 hour, what is the chance that mommy breaks her legs by slipping over one of the toys?

Now, Monkey is starting to play with toys made for children for 3 year old's and ABOVE.

The thing is, toys for children UNDER two do not contain small parts because of the choking hazard. Because children UNDER two cram anything in their mouths, especially little colored choking hazards. But toys for children ABOVE 3 can have many little parts and/ or breakable parts (depending on the quality).

See where I'm going?

If you have (had) a toddler and a very mobile baby, how do (did) you make sure your baby doesn't get hold of the toddler toys? Sure, I have explained to Monkey that Roo can't play with all his toys and that he needs to clean things up when he's done playing. But he is too young to be responsible.

This is really a big concern to me. Choking hazards. And to be honest, I am quite anal about it too. Have been, since the day Monkey was born. I've thrown away toys, have a box filled with little pieces and gifts that are really too small for Monkey. And (oooooh bad mom) have taken away gifts (not thrown away, I've kept them) that where really for 3 years and up. I can get really cranky about choking hazard toys.

But now he's getting older, and more ready to play with them. And he really is done with the rattle.

How did you do it? Or have you ever seen a great solution to the problem?

Your advice is GREATLY appreciated!